Zen of Sudoku was created in 2006.
Zen of Sudoku happened in 2006.
Rubik's Sudoku was created in 2006.
Buku Sudoku was created on 2008-05-28.
Sudoku Gridmaster was created on 2006-03-23.
Essential Sudoku DS was created on 2006-10-27.
The Tao of Zen was created in 1994.
Zen Peacemakers was created in 1996.
ZEN V was created in 2006.
ZEN MX was created in 2009.
The Sound of Zen was created in 2002.
Zen Habits was created in 2007.
Zen-Noh was created in 1972.